Home / 6,901.47-9,517.91-4,512.78

Finding the Fourth Proportional to 6,901.47, 9,517.91 and 4,512.78

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Solution

The fourth proportional to 6,901.47, 9,517.91 and 4,512.78 is: 6,223.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,901.47 : 9,517.91 = 4,512.78 : x
  2. Step 2: Convert to fraction form
    6,901.47/9,517.91 = 4,512.78/x
  3. Step 3: Cross multiply
    6,901.47x = 9,517.91 × 4,512.78
  4. Step 4: Simplify right side
    6,901.47x = 42,952,211.33
  5. Step 5: Solve for x
    x = 42,952,211.33/6,901.47
  6. Step 6: Final answer
    x = 6,223.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.